// cookies
+---------+-------------------------+------------------+------------+------------+
|   id    |         email           |     cookie       | date_time  |   device   |
+---------+-------------------------+------------------+------------+------------+
| int(11) |      varchar(50)        |   varchar(128)   |  int(11)   |            |
+---------+-------------------------+------------------+------------+------------+
| 1       | jack_2009@gmail.com     | ojer0f934mf2...  | 1467204523 |            |
| 2       | peter.zm@yahoo.com      | ko4398f43043...  | 1467205521 |            |
| 3       | matrix_john23@gmail.com | 34fjkg3j438t...  | 1467205601 |            |
| 4       | peter.zm@yahoo.com      | 0243hfd348i4...  | 1467206039 |            |
+---------+-------------------------+------------------+------------+------------+